Improvement in gems-thresher and separator



Patented June 30, 1868.

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GEORGE W. GREEK AND FRANK F. LANDIS, OF LANCASTER, PENNSYL- VANIA.

Letters Patent No. 79,467, dated June 30, 1868.

' IMPROVEMENT IN GRAIN-THRESHBR AND 'SEPARATOR.

v TO ALL WHOM IT MAY CONCERN:

Be it known that we, Gnonon W. GREEK and FRANK F'LANDIS, of the city of Lancaster, in the State of Pennsylvania, have invented new and useful Improvements on Machines for Threshing and Separating Grain; andwe hereby declare that the following is a full, clear, and exact description of, the construction and operation of the same, reference being had to the accompanying drawings making a part of this specification, in which- Figure 1 is a perspective view of the machine. I

Figure'Z illustrates the arrangement of the double-chambered fan-casing, and the double shoe and appliances.

Figure 3, the cranks, beams, and raking-apparatus,'to agitate and carry ofl' the straw.

Figure 4 shows a double and atriple crank.

Figure 5, -the oblique cam and shaker.

The nature of our invention consists, mainly, in the double-blast channels, double shoe, regulating-device, and carrying ofl' partially-threshed heads, and .in the peculiar construction of our rakes for thoroughlyagitating and conveying the straw from the machine. There are other minor improvements also. 7

To enable others skilled inv theart-tc make and use our invention, we will describe the same.

The framework, cylinder, concave perforated bottom, &c., in common use or well known, require no special description. Fig. 1 indicates the general eharacterof the machine.

The novelty consists in the following particulars: First, the construction of the fan-case, fig. 2.. The arms of the fan F are the radius of the dotted circle. This circle, at two points, a and z, is produced so as to form two channels or flues,ff These-points, 1 2, are determined by stepping off on a line, a at, having an angle of twenty-eight degrees from the horizontal line It It, through the centre, the desired widthof the flue, From point 1 to a gives the radius-for the curve a toa-z Thesame radius,i'r om' point 230 2, will give the inner curve, and by extending the radiusfrom said point 2 150 a, the lower outer curve will be given. The wings of the fan, coming in close contact successively (as they revolve) with the points a z, propel the air with about equal force'into the separate fluesf and f the partition 2 2 leading toaboutthe middleof the double shoe, as shown.

The regulating-board B. is hinged to the inclined board r by a pivot, on which it turns. The circular row of dots represent holes, into which afbolt, (or its equivalent,) fastened to the outer edge on one side, locks, to retain the board Rjn its adjusted position, so as to regulate the blast more or less strongly to pass over or tender the upper sieve, or into the upper or lower shoe, .9 s as m ay bedesirablel The lower edge of the inclined 'board r is provided with stout parallel wires, 1- r, bent down behind, and inserted into a. cross-strip, o, for the purpose of arres't'ingnnthreshed or portions of heads, and drive them (by the blast over the same) over the hind'end, and to prevent-such from falling down with the grain, and lodging in the meshes of the sieve U, as is the case on the machines in use, so that; the machines must be stopped to clean the sieve. This trouble is obviated by'the wire-slatted attachment? 1-. This, together with the double and branching blast, (shown by, the divided red lines,) leading into tl1e.double shoe aforesaid, constitutes the main feature of our improvementin this department.

The perforated bottom L, and tight bottom N, receive ajarring motion by afour-cogged pinion, w, on the pulley-shaft E, which comes in contact with anose or lug, d, on the under sideof the bottom, N, to shake the grain down, when it falls upon the inclined board m, which has bent, comb-like wires across it on the lower edge, through which the grains pass onto the sieve W; thence, freed from the greater portions of chaff, &c.,-it falls upon the inclined board T,'over the regulating-board r, onto the sieve U, in the lowershoe s and so on over ,screen v and the bottom, 2) 21, into the seed-spout s and screen-box u, subjected to an increased action of the blast;

in itspassage, and thoroughly cleaned and separated.

The raking-box Q, .or cap, contains the raking-device, fig. 3, the cranks 9 being on the shafts of the pulleys I G, revolving in concert by means of the connecting-rod C R, and gear, as shown by fig. 1.

Two beams, m m, the length of the box, are connected by a boxer bearing on the, under side, to the throwofi the crank-shaft, (say seveninches. throw,) in a reversed position, so that when the beam is up on one side, the other is down. These beams have a series of cross-pieces, u, provided with slightly-curved wireteeth, forming rakes, and extending inwards to the (opposite throw of the crank. These rakes freely pass over each other, successively tending to agitatethe straw, so as to shake out every grain, and convey the straw back in. the most perfect manner heretofore witnessed. A three-throw crank and three beams might be used, as shown in fig. 4, but deem it substantially the same.

In the illustration, fig. 2, the fan and shoe arrangement'is shown behind the cylinder 0, and is deemed better than when directly under, as shown in fig. 1, catching too much of the weightier dirt and oflal from the heaters. l

We have made other changes, which are not patentable, but conduce greatly in producing an efiiciency of the highest order, and a'great reduction in the power required to drive the same; and notwithstanding the sev- 4 eral patents and good machines in use, the concurring testimonyof experienced farmers encourages us' to present our claims to what we deem as novel as they are proved useful.

What we claim as our invention, and desire tosecure by Letters Patent is- 1. The double-chambered fan-casing or fines f andf made substantially in the mannerand for the purpose specified. i i

2. The arrangement of the double shoe 8 in combination with the regulating-board R, made substantially in the manner and for the purpose set forth.

3. In combination 'with the regulating-board R, and inclined board r, the appendage of the wire rack 1 rto the same, made substantially in the manner and for the purpose described.

7 4:. The raking-devicawhen constructed with parallel beams m and toothed slats or rakes n, revolving over each other in the manner and for the purpose specified.

GEORGE W. GREEK, FRANK F. LANDIS.

Witnesses WM. 13. Wrnnv, JAoon STAUFFER. 

